Drawer stop for cabinets and the like



Feb. 18, 19356. J. R. CLARK ZEBLESH DRAWER STOP FOR CABINETS AND THE LIKE Filed May 12, 1934 Fig 6' INVENTOR J/M/[J ,2 6242/1 F11 5 BY A). We

ATTORNEY Patented Feb. 18, 1936 UNITED STATES PATENT OFFICE James R. Clark, Rochester, N. 1., .assignor to Yawman & .Erbe'Mfg. Co.,.Rocheste1-., N. 1., a corporation of New'York Application May 12, .1934, :Serial :No. "125,308

a .6 Claims.

This invention relates to a cabinet and more particularly to a drawerstop construction ZfOl use in a cabinet.

1 In certain :types of cabinets, itis desirable to provide an adjustable drawer-stop 'toprevent the unintentional removal of the drawer from the cabinet when the drawer is opened, which stop, however, can be adjusted soithat the drawer can be completely removed from the cabinet whenever desired.

In accordance with the main feature of "the present invention, a drawer 'stop is provided whichis self-restored to its drawer retaining po- 'sition merely by its engagement with a stationary part of the cabinet in the course 'of the :closing "of the drawer.

This and "other features of the invention will appear from the detailed description, claims and drawing in which Fig. 1 "is 'aperspective view "of a cabinet :with one drawer partially open and a second drawer completely removed therefrom;

2 is a perspective view of a carriage slide for'use in the cabinet of Fig. 1; Fig. 3JisaTEragmentary side view of a cabinet showing the drawer "and the carriage slide in their extreme :open :positions and disclosing the drawer stop in its normal position; Fig. 4 is a view similar to t'hat of Fig. 3except'that'the drawer stop is illustrated in the drawer releasing position and the front end -'of the drawer is shown slightly elevated so that the drawer bumper will be free to disengage the carriage slide; and Figs.'5 and'6 are enlarged "detailed views of the drawer stop respectively its "drawer releasingiand its drawer retaining positions'.

V Referring especially to Fig. 1, 5 designates the :casingof a three :drawer filing cabinet, although the inventionis not limited 'to any particular number of drawers. Two'such drawers '6 are illustrated, of which the upper drawer is shown closed and the lowermost drawer is illustrated as partiallyopento showthe mounting of the drawer, while the middle drawer has been completely removed to disclose the case rail I and the interior construction of the case. On the inner surface of each of the side walls of the case there ismounted *in any suitable manner, a pair "of channel-shaped case strips 8 for each drawer. The inwardly extending flanges of each pair of "case strips 8, '8, serve as tracks .for' a carriage slidegenerally designated 9. As bestillustrated in Fig. 2, each carriage slide comprises two spaced channel-shaped members In having their rflanges facingeach other which members areapproximately equalin'length to the length of the drawer. Theslide also comprises two end strips, one-a flatspa'cing strip ll and the other an angle iron spacing strip 12, attached at their ends to the ends of "the flanges of the channel members 10, these strips having their lowermost surfaces in substantially the :plane of the last-mentioned flanges. Atran intermediate portion of the slide there is provided a third spacing strip l3 having its ends fastened to the lower flanges of the channel members. The strip l3, except at its "ends, is offset slightly below the lowermost planes of the spacing strip :H and I2 and the offset part thereof is provided with bumpers or stops ll to engage a case rail '1, in order to limit the outward movement of the carriage slide as it is withdrawn Iromthe case. Each of the channel members v.lll is providedlnear one end with a friction roller 3115, a pair of spaced friction rollers .ITB, 16a :at 'an intermediate portion thereof and frictionrollers I?! and 18 adjacent the other end of themember. These rollers respectively engage the upper and .lower face of a drawer strip 26 mounted pnieachside of the drawer, to facilitate the opening and closing :of the drawer.

Each channel member .near its front end is also provided with a drawer stop l9 having an upper arcuate camming surface 20. This drawer stop is pivoted at '21 on the member ID and has suitable friction washers also mounted on the pivot to resist the swinging movement of the stop. The lower portion of the drawer stop is' provided with :a flange '22 to engage the upper surface of the drawer strip for the purpose of normally preventing the upward movement of the draweraswillbeifurther described. The stop I9 is also provided with two spaced lugs 23 and 24 cooperating respectively with an ear 25 struck up from the channel member to limit the swinging movementtof the :stop to two extreme positions.

The drawer G'may be of any conventional constructiongbut as'herein disclosed it is formed of sheet :metal. Each side of the drawer is provided with a drawer-strip '26 which slides between the rollers 16, .1 60, on the drawer slide and which rides on the top of the rollers I5 and I1 and engages the bottom of the roller I8 depending on the position of "the drawer with respect to the case. The rollers 15, I621, and I 1 project thru the lower flange of thememberlflto roll on the lower flange of the case-strip as a track, while the roller l8 projects above the upperiflange of the member Hi to engage "the upper flange of the case strip 8 for the purpose of maintaining the carriage slide in horizorital position in the case. The bottom of the drawer is provided with a bumper or stop 21 which engages the strip II on the carriage slide, when the drawer has been moved to its outermost position.

In the normal use of the cabinet when it is not desired to remove the drawer from the carriage slide, the drawer stops l9 arein the position illustrated in Figs. 3 and 6 to hold the drawer in horizontal position shown in Fig. 3. While the drawer is thus maintained in horizontal position the bumper 21 will engage the strip H whenever the drawer and carriage slide are moved to the position illustrated in Fig. 3, so that the drawer cannot be disengaged from the carriage slide.

However, when it is desired to separate the drawer from the slide, the stops l 9 are manually moved to the position shown in Figs. 4 and 5 whereby the lower surface of the flange 22 is separated from the drawer strip 26 a distance somewhat greater than the thickness of bumper 21. In this position of the stops IS, the front end of the drawer can be elevated as shown in Fig.4 so that the bumper 21 can be raised above'the upper surface of the strip II after which the drawer canthen be further withdrawn toward the left as shown in Fig. 4 to disengage it from the slide.

When it is desired to replace the drawer on the slide, the drawer strips 26 are inserted between the stops l9 and the rollers IS on thefront end of the drawer slide and the drawer is moved toward the right as shown in Fig. 4, while the front end of the drawer is elevated, until the bumper 21 passes beyond strip H. Then the drawer front is lowered until the drawer strips engage the rollers l5. In the course of the further movement of the drawer toward the right, the drawer strips pass between the rollers l6, lGa and subsequently engage the upper surface of the rollers l1 and then the under surface of the rollers l8. As the drawer moves toward the right, the cam surfaces 20 of the drawer stops l9 telescopically engage the front portion of the upper flanges on the case strips 8 and on the further movement of the drawer into the cabinet, these flanges rock the stops IS on their pivots M to restore them to their normal position as shown in Figs. 3 and 6. By this arrangement, the stops on the drawer slide are restored to their normal position merely by the operation of inserting the drawer into the case and this is effected without any manual adjustment of the stops.

While each stop has been shown as being arranged to be restored by engagement with'its related case strip, it will be understood that it can be restored by engagement with any stationary part properly positioned on the case.

What I claim is: r

1. A cabinet provided on its respective sides with a pair of opposing drawer supports, a carriage slide slidable on said supports, a drawer slidable on said carriage, a bumper on said drawer, a drawer stop normally causing said bumper to engage a portion of the slide to limit the relative movement between said drawer and said slide, said drawer stop being movable topermit the separation of the drawer from the carriage slide, and stationary means mounted on a side of the cabinet and having a surface engaging said drawer stop on the closure of the drawer after its replacement in the carriage slide for restoring the stop to its drawer retaining position, the uppermost surface of said stop in its normal position being in a plane below the engaging surface of said stationary means.

2. A cabinet provided on its respective sides with a pair of opposing drawer supports, a carriage slide movable on said supports, a drawer slidable on said carriage slide, said carriage slide being progressively movable in response to the sliding movement of the drawer, and a drawer stop mounted for limited swinging movement only on each side of said carriage slide at the front thereof, the uppermost surface of each drawer stop being substantially flush with the upper surface of its related carriage slide, said drawer stops normally causing said bumper to engage a portion of the slide to limit the relative movement between said drawer and said slide but being movable to permit the separation of the drawer from the carriage slide, said drawer supports engaging said drawer stops on the closure of the drawer after its replacement in the carriage slide for restoring the stops to their drawer retaining positions.

3. A cabinet provided on its respective sides with a pair of opposing drawer supports, a carriage slide slidable on said supports, a drawer slidable on said carriage slide, a bumper on'said drawer, a drawer stop mounted on the forward end of said carriage slide to limit further relative movement between said drawer and said slide but being movable to permit the separation of the drawer from said slide, said drawer stop having a camming surface, the uppermost part of which in its normal position is substantially flush with the upper surface of said carriage slide, and stationary means mounted on the side of said cabinet and having a surface engaging said drawer stop on the closure of the drawer after its replacement in the carriage slide for restoring the stop to its normal drawer-retaining position, the uppermost surface of said stop in its normal position being in a plane below the engaging surface of said stationary means.

4. A cabinet provided on its respective sides with a pair of opposing drawer supports, a carriage slide slidable on said supports, a drawer slidable on said carriage slide, a bumper on said drawer, a drawer stop pivotally mounted on the forward end of said carriage slide and normally causing said bumper to engage a portion of the slide to limit further relative movement between said drawer and said slide but being movable to permit the separation of the drawer from said slide, said drawer stop having a flange providing a camming surface, the uppermost part of which in its normal position is substantially flush with the upper surface of said slide, and stationary means mounted on the side of the cabinet and having a surface engaging said flange during the closure ofthe drawer after its replacement in the carriage slide for restoring the stop to its normal drawer-retaining position, the uppermost surface of said stop in its normal position being in a plane below the engaging surface of said stationary means.

5. A cabinet provided on its respective sides with a pair of opposing drawer supports, a carriage slide slidable on said supports, a drawer slidable on said carriage slide, a bumper on said drawer, a drawer stop pivotally mounted on the forward end of said carriage slide to engage a por- .tion of said drawer whereby said bumper engages 'a portion of the slide to limit further relative movement between said drawer and said slide but being movable to permit the separation of the drawer from said slide, the pivot 01 said drawer 'stop being in substantially vertical alinement with a point of engagement between said stop andsaid drawer, and stationary means mounted 75 on the side of the cabinet and having a surface engaging said drawer stop on the closure of the drawer after its replacement in the carriage slide for restoring the stop to its normal drawerretaining position.

6. A cabinet provided on its respective sides with a pair of opposing drawer, supports, a carriage slide slidable on saidsupports, a drawer slidable on said carriage slide, a bumper on said drawer, a drawer stop pivotally mounted on the forward end of said carriage slide to engage a portion of said drawer whereby said bumper engages a portion of the slide to limit further relative movement between said drawer and said slide, but being movable to permit the separation of the drawer from said slide, the pivot of said drawer stop being in substantially vertical alinement with a point of engagement between said stop and said drawer, the said drawer stop having a camming surface the uppermost part of which in its normal position is substantially flush with the upper surface of said slide, and stationary means mounted on the side of the cabinet and having a surface engaging said drawer stop during the closure of the drawer after its replacement in the carriage slide for restoring the stop to its normal drawer-retaining position.

JAMES R. CLARK. 

